Knotts and Downs

Looking for any information about the following family: Walter B. Knotts b.March, 1866, married Allema???( last name unk), b. Sept. 1870. They lived in Kent Co.where he was a farmer. Per 1910 census they had 6 children: Rena ,Mary, Walter Jr., Margaret, Elizabeth, and John. Mary is my sons'greatgrandmother. Mary married Charles A. Downs; they lived in Kent Co. Any information would be appreciated. Thank you. Becky Darrell